Nortel Enterprise 1000 Reference Manual page 124

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Table 26
E&M trunk card — backplane pinouts for 4-wire modes
Trunk
Number
Pin
12B
13B
0
14B
15B
16B
17B
1
18B
19B
62B
63B
2
64B
65B
66B
67B
3
68B
69B
553-3023-211 Standard 1.00 June 2001
NT8D15 E&M Trunk Card
4-wire Type I Mode
Signal Pin
TA 12A
RA 13A
E 14A
ECG 15A
TA 16A
RA 17A
E 18A
ECG 19A
TA 62A
RA 63A
E 64A
ECG 65A
TA 66A
RA 67A
E 68A
ECG 69A
4-wire Type II Mode
Signal Pin
TB 12B
RB 13B
M 14B
ESCG 15B
TB 16B
RB 17B
M 18B
ESCG 19B
TB 62B
RB 63B
M 64B
ESCG 65B
TB 66B
RB 67B
M 68B
ESCG 69B
Signal Pin
TA 12A
RA 13A
EA 14A
MA 15A
TA 16A
RA 17A
EA 18A
MA 19A
TA 62A
RA 63A
EA 64A
MA 65A
TA 66A
RA 67A
EA 68A
MA 69A
Signal
TB
RB
EB
MB
TB
RB
EB
MB
TB
RB
EB
MB
TB
RB
EB
MB